5 6
18-10-2004
18-10-2004
00
REG. CODE
1-5302-662
MODEL N°
51092
DATE OF ISSUE
REVISION
DATE
ENDORSED
COMPILER TECO/ATI
XI
DISASSEMBLY/REASSEMBLY
FUEL FLOW GOVERNOR DESCRIPTION
From figures 1 and 2 one can see the essential components and the functioning of the governor.
The mass holder (1) is driven in rotation by its own shaft driven in turn by the camshaft.
In to the mass holder (1) there are 4 centrifugal counterweights (2) that act on the push rod (3) . The push rod activate's
the lever (4) hinged on the pivot (5) which is fixed to the governor housing, the other end of the lever links to the injection
pump regulation rod (7) .
Between the lever (6) and the lever (4) acts a spring (8) for the starting maximum fuel flow. On the control lever (6) acts :
the spring (9) for the idle-speed control ; the spring (20) for the adjust of the fuel flow to the engine rpm ; and through the
cup (10) and the shaft (11) , the maximum engine rpm control spring (12). The last spring , assembled with pre-load in
the frame (17) , is futter compressed by the lever (13) which is connected with the speed control lever (14).
The lever (15) , which is connected to the engine stop control (16) , acts on the lever (4) and then on the injection pump
control rod (7). On the governor box a magnet (18) is fixed , its function is to keep the lever (4) in the position of
supplementary flow at the engine start position. The lever (6) pushcs on the regulation screw (19) that puts in a correct
position the rod (7).
Magneto positioning on the governor
Insert the injection pump on the cylinder head and lock it after positioning in may del position.
Loosen the magneto fixing screws and move the magneto itself in order to meet the push rod lever; fix the magneto in this
position and check that the release load of the push rod lever is 700 ÷ 800 gr.
Engine stop lever adjustment
Running position: adjust the catch screw (20) of the engine stop lever (16), in such a way that it’s internal part does not
interfere with the rod control lever (4).
Stop position: adjust the stop screw (21) of the engine stop lever (16), in such a way that the stop does not take place
through the rod control lever (4) and the connection rod (7), on the injection pump
Mass play axial play and adjusting spacers
Play
: 0,1÷0,16 mm
Spacers
: mm 1,2 - 1,3 - 1,4
Tolerance : ± 0,05
Содержание LDW 422 SERIES
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